ASTROSAT CZTI

Data Quality Report

Orbit 04093

Creation date: 2024-06-27T14:37:14.212266
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_222T01_9000000520_04093cztM0_level2.evt modeM0/AS1G05_222T01_9000000520_04093cztM0_level2_quad_clean.evt
Size (bytes)741,061,44052,643,520
Size706.7 MB 50.2 MB
Events in quadrant A3,643,116310,409
Events in quadrant B3,680,536310,047
Events in quadrant C11,462,385219,553
Events in quadrant D3,213,882295,766

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150743
B0152072
C0384339
D0141954

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6548841.282834%
B65481732.642028%
C6547325949.778525%
D6547721.099740%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7648 6548 4 4 0.05% 0.06%
B 7648 6548 84 84 1.10% 1.28%
C 7647 6547 3286 3286 42.97% 50.19%
D 7648 6548 25 25 0.33% 0.38%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 199 509465 3131.38 794 775 162.4
A 0 226 55275 335.49 794 775 162.4
A 0 118 14802 86.35 794 775 162.4
B 10 16 266567 1729.14 798 780 153.7
B 14 167 154123 997.61 798 780 153.7
B 3 0 71468 459.88 798 780 153.7
C 12 204 8874781 57948.77 660 663 153.1
C 13 61 5338 30.53 660 663 153.1
C 12 4 3697 19.81 660 663 153.1
D 12 233 221662 1201.61 766 745 183.9
D 13 223 27573 145.92 766 745 183.9
D 13 239 21978 115.49 766 745 183.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter